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Commit 49599cf6 authored by Xiubo Li's avatar Xiubo Li Committed by Thierry Reding
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pwm: ftm: Add regmap rbtree type cache support 



This patch is to prepare for adding PM support for FTM PWM driver using
callback function suspend and resume in .driver.pm of platform_driver.

Signed-off-by: default avatarXiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent 8e6e7651

drivers/pwm/pwm-fsl-ftm.c

+11 −0
Original line number Diff line number Diff line
@@ -397,12 +397,23 @@ static int fsl_pwm_init(struct fsl_pwm_chip *fpc) 
	return 0;

}



static bool fsl_pwm_volatile_reg(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case FTM_CNT:

		return true;

	}

	return false;

}



static const struct regmap_config fsl_pwm_regmap_config = {

	.reg_bits = 32,

	.reg_stride = 4,

	.val_bits = 32,



	.max_register = FTM_PWMLOAD,

	.volatile_reg = fsl_pwm_volatile_reg,

	.cache_type = REGCACHE_RBTREE,

};



static int fsl_pwm_probe(struct platform_device *pdev)